I'm not for sure if it was in a Suburban, but I think it was. I do no Chevy did produce a 454 in 1985, in alot of trucks.
That would be a 4L80E
The corect gap is .035
That would be the 350 or the 454
mounts for 454,poss flywheel,computer for 454
A 1995 454 engine normally found in Chevy Suburban's produced exactly 230 horsepower and 385ft-lbs torque in stock form.
1999 was the last year it was a available,
Need to know year and engine size, That will help us answer your question. it's a 7.4 454 engine in a 1996 GMC suburban
remove engine should be pretty straight forward after that
A 350 engine is limited to 5000 pounds and a 454 engine is limited to 7100 pounds.,
Located inside fuel tank
It would have more power and use more gas.